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(No Model.) 3 Sheets-Sheet 1.

J. W. VAN DYKE. STEAM .BOILER.

No. 289,322; Patented Nov. 27, 138s.

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(No Model.) s'sheets-sheet 2.

JAW. VAN DYKBQ STEAM BOILER.' 8 u No. 289,322. Patented NOV. 2'7, 1883.

u UNITED STATES* PATENT OFFICE.

` JOHN W. VAN nYKn, on BROOKLYN, NEW YORK.

' STEAM-Bonita.-

SPECIFICATION fermingpart of Letters PatentNo. 289,322, dated November27, 1883.

Application tiled April 4. 1F83. (No model.)

`To all whom it may concern..- Be it known that I, JOHN W. VAN DYNE, ofBrooklyn, in the county of Kings and State of New` York,`have inventedcertain Improvements in Steam-Boilers, of which the following is aspecification. i

` This invention relates tothat class of steamboilers commonly termedWater-tube boil shall be reduced to the lowest possible degree.

. ers, and its object is to provide asimple, 1o

strong, and eflicient boiler in which provision shallbe made for the`most advantageous ciri culation of t-he Water and the free and unimpededdisengagement of the steam from the boiler, and in which the injury tothe structure of the boiler incident to expansion and contractionarising from changes of temperature The invention comprises certainnovel combinations of parts whereby these objects and results aresecured.

Figures l, 2, and 3 are vertical transverse n sectional views,representing various features and modications of my said invention, and

taken in a vertical plane corresponding to that indicated by the dottedlines x in Fig. 4. Fig. 4 is a longitudinal vertical sectional View,illustrating my said invention; Fig. 5 is a front elevation of myimproved boiler, and Fig. 6

` tions cinto chambers A.

is a horizontal section thereof on line y Fig. 4. n

Having reference first to Fig. 1, A are headers designed to connect thetubes of the boiler, as hereinafter explained, and rectangular in ptheir oross-sectio11,with flat sides, and intended "35 to be placed onend-that is to say, vertical,-

to constitute the ends ofthe boiler. They are intended to be made ofcast-iron or cast-steel, and each is divided horizontally by the parti-Each of these headers is provided at its inner side-with a pair ofopenings communicating With each of the chambers A', said openings beingof such size and shape as to receive the adjacent inserted ends of thetubes B, which are preferably secured therein by being expanded into thesaid openings. The outer side of each of said headers is provided eitherwith hand-holes arranged one opposite each of the openings B', or, inlieu thereof, the said headers may be originally formed with said outerside opened, and when put into use and operation have said sides closedby large plates B, each corresponding to the size and contour of thechamber A over or upon which it is placed, the said plates being held inposition by suitable bolts, d. The

tubes B are arrangedin series, zigzagged vertically, as represented inFi g. 4, in such manner that the water from the lowermost of thechambers A at thefront of the boiler may pass back and forth through theseveral chambers of the headers at the opposite endof the boiler untilit reaches the uppermost `'of said headers, and passes thence into asteam-discharging chamber, C, placed at the top of said headers at therear of the boiler, the said steam-discharging chamber communicating bya passage, C, with the steam-drum D, which latter has adjacent to thepassage C a vertical partition, c, which extends up from the bottomofthe drum to or above the middle thereof, the object being to `preventthe downward flow of the water from the rear of the said drum, if in anycase the normal circulation of the Water through the boiler should bechecked or reversed.-

The front of the steam-drum D communicates with the lowermost 0f thechambers A ofthe headers A by means of a chamber, E, in

ldirectcommunication with said end of said drum and tubes F, whichcommunicate With a base-chamber, G, with Which the lowermost ends ofthetubes communicate, as shown at c in Fig. 4. The tubes F communicate Withthe base-chamber G at the ends of the latter-as,

lfor example, at the parts indicated at f in Fig.

5the said ends of the base-chamber being bolted direct tothe tubes F,so. as to be suspended thereby, the said tubes F being extended fartherdown, resting upon suitable foundations, and tle other lower mud-drumsfor the boiler.

The iire-boX H may be arranged in any suit able or usual relation to thetubes of the boiler, and the latter may be provided at its sides Withthe usual brick-Work, I.

In` the operation of theboiler the Water from the lowermost of the tubescirculates from one to another of each of the vertical zigzagged seriesthrough the headers of such series, thence through the chamber C intothe drum D, and, after traversing the latter, into the base-champartsconstituting IOO ber G, and thence again into the lowermost of -thetubes, the steam being readily disengaged from the Water, as the latterpasses up the chamber G behind the partition c into the drum. Asrepresented in Fig. 1, and hereinbefore set forth, the headers are shownand described in their simpler form.

Further features of my said invention comprise additional constructionand operation of the said headers in their relation to the tubes.

Having reference now to Fig. 2, in connection with Figs. 4, 5, and 6,the headers are made double-that is to say, are not only horizontallydivided into the chambers A' ,but are divided by vertical partitions m,so that each header comprises two parallel vertical series of chambers,A', formed in one and the same casting. In this case one of the narrowheaders hereinbefore described is employed at each end of the boiler andat opposite sides thereof,

las illustrated in plan view Fig. 6, so that while any two adjacenttubes in the same inclined plane shall at one end enter one and the sameheader, at their opposite ends they shall enter separate headers, thesaid tubes of each horizontal plane therefore, taken in connection withtheir headers, forming zigzagged water-courses, as illustrated in saidFig. 6. When the vertical partitions of these last-mentioned headersextend from top to bottom of the chambers A', the operation of theboiler will be substantially the same as that when the ends of the saidboilers are made up of the narrow headers shown in Fig. 1, andhereinbefore fully described; but by forming openings inthe saidvertical partitions at or near the upper endsof each of the chambers A',a lateral circulation of the water from-one of the vertical series oftubes to the other may be suffered to take place, to this extentmodifying in some degree the circulation ofthe water.

Having reference to Fig. 3, taken in connection with Figs. 4, 5, and 6,the vertical partition m is replaced by two internal parallel walls, n,having spaces r between them, and with the opening p in both of them ator near the top of the chamber A', and with, furthermore, openings atthe bottom through the said walls, and also an opening through thehorizontal partitions a coincident with the said walls, as representedat r', this construction and arrangement facilitating the disengagementof steam from the upper part of the chambers A'-in other words, toprevent the locking of superheated steam inthe cavities above the. endsof the tubes B.

It will be observed that the arrangement of the headers and the holesand partitions therein leaves the tubes in straight lines, whetherviewed horizontally or vertically. The horizontal arrangement leaves aclear horizontal space between any two series of tubes, which admits ofthe passage of cleaning devices between said tubes, and also of the useof the tiles T shown in Fig. 4.

What I claim 'as my invention is- 1. The compound vertical headershorizontally divided into chambers, as set forth, and

constructed with internal vertical walls, in combination with the tubesB, arranged to form zigzag series vertically and horizontally, leavingYa clear horizontal passage between each series, as described, saidheaders being placed side by side to forni the ends of the boiler, allsubstantially as and for the purpose herein set forth.

2. The compound vertical headers horizontally divided into chambers andprovided with internal vertical parallel walls, n, having a space, r,between them, and openings p in said walls at or near the top of eachchamber, in combination with the tubes B, arranged to form zigzag seriesvertically and horizontally, substantially as and for the purpose hereinset forth.

3. The combination of the narrow vertical compound headers, the compoundheaders internally divided into series of parallel verticalcompartments, and the tubes B, arranged in zigzag series vertically andhorizontally, all substantially as-and for the purpose herein set forth.

4. rlhe combination of the narrow vertical compound headers, thecompound headers internally divided by parallel vertical walls n, havingspace r between them, and provided with openings p, and the tubes B,arranged in zigzag series vertically and horizontally, all substantiallyas and for the purpose herein set forth. y

5. The combination of compound headers divided into chambers byhorizontal partitions, and placed side by side to form the ends of theboiler, the tubes B,arranged in vertical zigzag series, thesteam-discharging chamber C, formed independently of the verticalheaders and receiving one series of tubes, and the drum D, allsubstantially as and for the purpose herein set forth.

6. The combination of compound headers divided into chambers byhorizontal partitions, and placed side by side to form the ends of theboiler, the tubes B, arranged in vertical zigzag series, thesteam-discharging chamber C, formed independently of the verticalheaders and receiving one series of tubes, the drum D, and thereturn-pipes, all substantially as and for the purpose herein set forth.

7. rIhe combination of compound headers divided into chambers byhorizontal partitions, and placed side by side to form the ends ofthe'boiler, the tubes B, arranged in vertical zigzag series, thesteam-discharging chamber C, formed independently of the verticalheaders and receivingone series of tubes, the drum D, the return-pipesF, and partition placed in said drum adjacent to the steam-dischargingchamber, all substantially as and for the purpose herein set forth.

JOHN W. VAN DYKE.

Witnesses:

EDWARD A. HoLLEY, RUDOLF H. KJELLMAN.

IOO

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